Arnold Schwarzenegger said:Well whatever the reason for the cracking hinge is, it looks like it will eventually break. The reason I say this is because parts of it (on the way left and right sides) are made too small and are too thin and may crack sometime, whether it be a few months or a year or so. Yours might not even crack at all, who knows. Hopefully Nintendo reconstructs the hinge better, here's a pic of how it could work:
The image on the top is obviously what our DS Lites sorta look like, the one on the middle is one way it could be rebuilt (though I don't know if this is a good idea and if the hinge may be able to fall apart, which is why you should take a look at the third DS Lite). The DS Lite on the bottom of the picture shows what it would be like if the left and right sides of the hinge were bigger (and less likely to break easily).
This is just an example of how the hinge could have better construction, of course they may actually look better than how they were drawn and may be constructed differently (that is, if Nintendo really does this).
It looks like Nintendo did something like image 2 and kudos to them. They should have done this back when they manufactured the Lites but at least our 3DS hinges ain't gonna fall apart any time soon. TBH I never had this hinge issue but the redesign should prevent anyone from easily getting it.